HP Color LaserJet 4650 Printer series - Manual (Page 20)

Note 288 MB of SDRAM: 256 MB of DDR, 32 MB of additional memory on the formatter board,
and an additional DIMM slot. This printer has two 200-pin small outline dual inline memory
module (SODIMM) slots that accept 128 or 256 MB of RAM each.
HP Color LaserJet 4650hdn (Part number Q3672A)
The HP Color LaserJet 4650hdn includes the features of the 4650dn, plus a 2 x 500-sheet
paper feeder assembly (Tray 3 and Tray 4), and an optional hard disk.
Note 288 MB of SDRAM: 256 MB of DDR, plus 32 MB of additional memory on the formatter
board and an additional DIMM slot. This printer has two 200-pin small outline dual inline
memory module (SODIMM) slots that accept 128 or 256 MB of RAM each.
6 Chapter 1 Printer basics ENWW